JP2012105755A - Heater-dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out a drying operation according to the extent of humidity of clothing or an object to be dried in a room or the like, and save running costs.SOLUTION: A heater-dryer includes humidity-detecting means 27 for detecting the humidity of a suction air. A hot air-drying operation comprises a first preliminary hot air-drying operation to be executed for a predetermined time successively after a blowing air-drying operation, a second preliminary hot air-drying operation to be executed for a predetermined time successively subsequent to a blowing air-drying operation performed after the first preliminary hot air drying operation, and a main hot air-drying operation to be executed successively subsequent to a blowing air-drying operation after the second preliminary hot air-drying operation. The heater-dryer further includes computing means for setting a time (TX) according to a humidity difference in such a manner that the larger a difference obtained by subtracting the detected humidity (one humidity) in the second preliminary hot air-drying operation from the detected humidity (another humidity) in the first preliminary hot air-drying operation becomes, the shorter the time (TX) for executing the main hot air-drying operation becomes.

Description

  The present invention relates to a heating dryer that can function as a clothes drying chamber.

  Conventionally, after performing a ventilation drying operation for drying the interior of the bathroom by blowing air (room temperature wind) for a predetermined time and detecting that the clothes are in a substantially dry state with a humidity sensor, the heat source machine is turned on, There is known a bathroom ventilation dryer that can completely remove moisture remaining on clothing by performing a finish drying operation with warm air for a certain time (see, for example, Patent Document 1).

  In this conventional example, a warm air drying operation is performed in which the heat source unit is operated at least once during a blow drying operation for a predetermined time, and the humidity α1 and α2 before and after the warm air drying operation are detected by a humidity sensor. When the humidity α2 after the drying operation is lower than the humidity α1 before the hot air drying operation, control is performed so as to shift to the finishing drying operation in which the hot air drying operation is continued for a predetermined time.

Japanese Patent Laid-Open No. 11-47495

  However, in the conventional example shown in the above-mentioned Patent Document 1, in order to save electricity bills, the clothes are dried mainly by the drying operation using only air blowing, so that the wet objects such as clothes and bathrooms are wet. When the degree of is large, the drying time may become extremely long against the intention of the user. In addition, since the time for finishing drying operation with warm air is determined in advance to a certain time, it causes unnecessary excessive drying or insufficient drying due to variations in the wetness of objects to be dried such as clothes and bathrooms. It was difficult to dry the finished product.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to perform a drying operation according to the degree of wetness of an object to be dried such as clothing or a room, and to perform a wasteful drying operation. No extra energy is consumed, which saves running costs for the drying operation and allows the user to dry well with a drying time according to the drying time target desired by the user. Is to provide a simple heating dryer.

  In order to solve the above-mentioned problem, the present invention sucks indoor air from the suction port 1 as intake air, exhausts a part of the intake air to the outdoors, and heats the remaining intake air by a heating means to blow out the air outlet 3. The hot air drying operation in which the room is heated and dried by blowing it out as hot air from the room, and the room air is sucked in as intake air from the suction port 1, and a part of the intake air is exhausted outdoors and the remaining intake air A heating dryer that blows and dries the interior of the room by blowing it out of the air outlet 3 without heating it by a heating means, and includes a humidity detecting means 27 that detects the humidity of the intake air, The hot air drying operation follows the first preliminary warm air drying operation that is executed for a predetermined time following the blow drying operation and the blow drying operation after the first preliminary hot air drying operation is completed. A first preliminary warm air drying operation that is performed following a second preliminary warm air drying operation that is performed for a predetermined period of time and an air blowing drying operation that is performed after the completion of the second preliminary warm air drying operation. The humidity detected by the humidity detecting means 27 when performing the wind drying operation is set as one humidity, and the humidity detected by the humidity detecting means 27 when performing the second preliminary warm air drying operation is set as another humidity. The hot air drying operation time according to the humidity difference is such that the hot air drying operation time for executing the hot air drying operation is shortened as the humidity difference obtained by subtracting the other humidity from the one humidity increases. It is characterized by comprising a calculation means for setting.

  By adopting such a configuration, the optimum hot air drying based on the humidity change (humidity difference) when warm air is applied to an object to be dried such as clothes in the first and second preliminary warm air drying operations. Since the operation time can be set, the drying operation can be performed according to the degree of wetness of the object to be dried such as clothing and indoors, and unnecessary energy consumption is not consumed without performing unnecessary drying operation. This can save the running cost for the drying operation.

  In addition, a room temperature detecting means for detecting the temperature of the intake air is provided, and the maximum value of the main hot air drying operation time is set according to the room temperature detected by the room temperature detecting means during the air blowing drying operation. Is preferred. In this case, excessive drying due to erroneous detection or the like can be prevented.

  In addition, a room temperature detecting means for detecting the temperature of the intake air is provided, and the minimum value of the main hot air drying operation time is set according to the room temperature detected by the room temperature detecting means during the air blowing drying operation. Is preferred. In this case, insufficient drying due to erroneous detection or the like can be prevented.

  In addition, it is preferable to perform a post-air drying operation in which the air-air drying operation is subsequently performed after the hot air drying operation is completed. In this case, the high temperature and high humidity air remaining in the room can be discharged outdoors by the post-air blowing drying operation, and the absolute temperature in the room can be lowered.

  In addition, it is preferable that a timer for presetting the time from the start of operation to the end of operation is provided, and the hot air drying operation is ended before the timer time elapses. In this case, it becomes possible to dry well with the drying time according to the drying time target desired by the user.

  In addition, after the hot air drying operation is completed, or when the post air drying operation is performed after the hot air drying operation is completed, the post air blowing drying operation is completed, and then all of the intake air is taken outdoors. It is preferable to perform a ventilation operation to exhaust. In this case, the interior of the room can be sufficiently dried by sufficiently discharging moisture from the room after the clothes are dried.

  The present invention can perform a drying operation in accordance with the degree of wetness of an object to be dried such as clothes or indoors, and does not perform unnecessary drying operation and consumes extra energy, resulting in the drying operation being performed. Eco-drying operation that can save running costs.

  In addition, according to the present invention, it is possible to dry well with a drying time corresponding to a drying time target desired by the user.

It is a longitudinal cross-sectional view which shows an example of the bathroom heating dryer used for one Embodiment of this invention. It is a pipeline figure explaining piping inside a bathroom heating dryer same as the above. It is a perspective view of the state which installed the bathroom heating dryer same as the above in the bathroom. It is a block diagram of a control part same as the above. It is a front view of the operating device for dressing rooms same as the above. It is a front view of the operating device for bathrooms same as the above. It is a time chart which shows the relationship between warm water temperature at the time of eco-dry operation same as the above, humidity sensor output, and bathroom temperature. It is a flowchart explaining the control operation | movement from a driving | operation start same as this to this hot air drying operation. It is a flowchart explaining the control operation from the warm air drying operation same as the above to the end of the operation. It is a graph which shows this warm air drying operation time [TX] same as the above.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIG. 1 to FIG. 3, the heating dryer of the present invention comprises a bathroom heating dryer with a mist function (hereinafter simply referred to as “bathroom heating dryer A”) installed in a bathroom 2 such as a unit bath. Has been. This bathroom heating dryer A heats the inside of the bathroom 2, ventilates the inside of the bathroom 2, dries the inside of the bathroom 2, dries the laundry dried in the bathroom 2, and cool air in the bathroom 2. , Spraying warm water mist in the bathroom 2 to spray a mist bath, spraying warm water mist in the bathroom 2 and blowing warm air into a mist sauna bath.

  When the bathroom heater / dryer A is installed in the bathroom 2, as shown in FIG. 3, the bathroom heater / dryer A is installed on the ceiling 8 of the bathroom 2 at a position above the bathtub 7. The main body 9 of the bathroom heater / dryer A is disposed behind the ceiling, is suspended and supported on a ceiling slab by a hanging metal fitting 10, and the lower surface of the main body 9 faces the opening 11 of the ceiling 8 of the bathroom 2. is there. A grill plate 12 (FIG. 1) is disposed so as to cover the opening 11 from below the ceiling 8, and the grill plate 12 is attached to the lower surface side of the main body 9.

  As shown in FIG. 2, a hot air heat exchanger 13 and a blower 14 are housed inside the main body 9. This hot air heat exchanger 13 heats air by exchanging heat between the air flowing outside by passing hot water through the inside, that is, the air sent into the bathroom 2 and the hot water. This hot air heat exchanger 13 is disposed in the middle of a heating hot water pipe 15 piped to the main body 9, and the heating hot water pipe 15 is connected to a heat source machine 16 such as a hot water heater (FIG. 3). Hot water is supplied. A heating valve 17 that opens and closes the supply of hot water to the hot air heat exchanger 13 is provided in the middle of the heating hot water pipe 15, and hot water that flows through this pipe in the middle of the heating hot water pipe 15. A heating hot water thermistor TH2 for detecting the temperature is arranged.

  As shown in FIG. 1, the blower 14 includes a bathroom circulation fan 14 a that circulates the air in the bathroom and a ventilation fan 14 b that exhausts the air in the bathroom to the outside. Reference numeral 50 in FIG. Further, a blowout port 3 for blowing out air blown by the circulation fan 14a in the bathroom is provided on the lower surface side of the main body 9, and a movable louver 18 is rotatably attached to the blowout port 3, and the movable louver 18 is attached to the blowout port 3. By rotating, the air outlet 3 can be opened and closed and the direction of the air blown out from the air outlet 3 can be changed. The grill plate 12 is provided with a suction port 1 for sucking air into the bathroom 2, and a bathroom temperature thermistor TH 3 is disposed in the vicinity of the suction port 1.

  Further, the bathroom heater / dryer A incorporates a mist generating section 19 for providing a mist bath function. The mist nozzle 4 of the mist generating unit 19 is disposed in the grill plate 12, and the mist water supply pipe 20 is communicated with the mist nozzle 4. As shown in FIG. 2, the mist nozzle 4 includes two mist nozzles 4a and 4b. Each mist nozzle 4a and 4b sprays hot water mist at a flow rate of about 0.5 liter / min. It has become. Mist opening / closing valves 21a and 21b such as solenoid valves are provided in front of the mist nozzles 4a and 4b, and hot water mist is selectively generated from the mist nozzle 4a and the mist nozzle 4b by opening and closing the mist opening and closing valves 21a and 21b. It comes to be sprayed. When the mist of warm water is sprayed from the two mist nozzles 4a and 4b, the mist can be sprayed with a strong mist amount, and when the mist of warm water is sprayed from one mist nozzle 4a or the mist nozzle 4b, it can be sprayed with a weak mist amount. It has become. In the case of this example, the mist generating unit 19 is mounted on the main body 9.

  The water supply pipe 20 for mist is supplied with tap water such as tap water, and is provided with a water supply electromagnetic valve 23 such as a strainer 22 and an electromagnetic valve in order from the inlet side. The heating hot water pipe 15 is provided with a mist heating pipe 24 in parallel with the hot air heat exchanger 13, and the mist heating pipe 24 is provided in the middle of the mist heating pipe 24. Is provided with a proportional valve 25 for controlling the flow of hot water. A mist heat exchanger 26, which is a liquid-liquid heat exchanger, is disposed between the mist heating conduit 24 and the mist feed water conduit 20, and the mist is heated by the hot water flowing through the mist heating conduit 24. The water for mist flowing through the water supply pipe 20 is heated. A mist temperature thermistor TH1 for detecting the temperature of the hot water flowing through the mist water supply pipe 20 is disposed between the mist heat exchanger 26 and the mist opening / closing valves 21a and 21b in the mist water supply pipe 20.

  As shown in FIG. 3, the bathroom heater / dryer A is operated by a remote controller using an operating device 5 provided in a dressing room outside the bathroom 2 or an operating device 30 provided in the bathroom 2. As shown in FIG. 5, the operator 5 for the dressing room includes a timer display unit 31, a timer setting switch 32, a wind direction switch 33, a mist sauna switch 34, a drying switch 6, a heating switch 36, a cool air switch 37, and a ventilation switch 38. A stop switch 39 is provided. As shown in FIG. 6, the operation device 30 for the bathroom includes a status display unit 40, a mist sauna switch 34, a mist switch 41, a temperature setting switch 42, a heating switch 36, a cool air switch 37, a wind direction switch 33, and a mist bathing time. A stopwatch start / stop switch 43, a reset switch 45, and a stop switch 39 are provided.

  FIG. 4 shows an example of the control unit B of the bathroom heating dryer A. The control unit B includes a memory 28, an arithmetic circuit 29, and the like. The controller B can be controlled as follows by operating the controller 5 and the controller 30 by remote control.

  The eco-drying operation of the present invention will be described below.

  In the present embodiment, humidity detection means 27 (FIGS. 1 and 2) for detecting the humidity of the intake air is disposed in the vicinity of the suction port 1 of the grill plate 12. As the humidity detection means 27, for example, a humidity sensor 27a composed of a temperature sensitive element such as an NTC thermistor is used. For example, a humidity measurement element that is open to come into contact with the intake air and a temperature correction element that is sealed in a sealed case are integrally provided, and when the humidity of the intake air changes, the thermal conductivity of the humidity measurement element changes. Thus, a difference occurs between the output values of both elements, and the absolute humidity value can be measured according to this difference.

  Next, the control operation of the eco-drying operation will be described with reference to the flowcharts of FIGS.

  By pressing the drying switch 6 (FIG. 5) of the operating device 5 for the dressing room three times, the drying [eco] lamp 35 is turned on, and the eco-drying operation is started (step S1). At this time, the wind direction switch 33 sets the wind direction, and the timer setting switch 32 sets the timer time in the range of 6 hours to 12 hours. First, the movable louver 18 is opened, the in-bath circulation fan 14a and the ventilation fan 14b are turned on, and the air drying operation is started (step S2).

  When two hours have elapsed from the start of the blow drying operation (step S3), the first preliminary warm air drying operation is started following the blow drying operation (step S4). In the first preliminary warm air drying operation, the heat source device 16 is turned on for a predetermined time (for example, 10 minutes) while the operation of the circulation fan 14a and the ventilation fan 14b in the bathroom is continued. The hot air heated by the hot water from the machine 16 is blown into the bathroom 2 so that the bathroom 2 is heated and dried. Then, the heating hot water thermistor TH2 detects the hot water temperature of 60 ° C. or more (step S6), and when a certain time (for example, 60 seconds) has passed (step S7), the bathroom temperature thermistor TH3 measures the bathroom temperature [t1]. Then, the humidity sensor output [D1 (01)] is measured (step S8) and stored in the memory 28. Thereafter, when 10 minutes have elapsed from the start of the preliminary warm air drying operation (step S9), the heat source device 16 is stopped, the thermal valve 17 is closed, and the first preliminary warm air drying operation is terminated (step S10). After that, it returns to the air drying operation again.

  However, if the hot water temperature does not reach 60 ° C. even after 5 minutes have elapsed since the first heat source device 16 is turned on, it is possible that a trouble has occurred in the heat source device 16, etc. Steps S8 to S10 are not executed, and the process proceeds from step S5 to step S19 described later.

  Thereafter, when the operation time is 100 minutes before the end of the timer (step S11), the second preliminary warm air drying operation is started following the blow drying operation (step S12). In the second preliminary warm air drying operation, the heat source device 16 is turned on for a predetermined time (for example, 7 minutes) while the operation of the circulation fan 14a and the ventilation fan 14b in the bathroom is continued, and the bathroom 2 is heated and dried. As a result, the hot water temperature rises again, detects that the hot water temperature is 60 ° C. or higher (step S14), and when a certain time (for example, 60 seconds) elapses (step S15), the bathroom temperature [t3] and the humidity sensor output [D1 (02)] is measured (step S16) and stored in the memory 28. Thereafter, the process proceeds to step S17 to calculate [D2 = D1 (01) −D1 (02) + td * X], and further proceeds to step S18 to calculate the main hot air drying operation time [TX]. A method for calculating [D2] and [TX] will be described later.

  Thereafter, when 7 minutes have elapsed from the start of the second preliminary warm air drying operation (step S20), the heat source device 16 is stopped, the thermal valve 17 is closed, and the second preliminary warm air drying operation is terminated (step S21). ). After that, it returns to the air drying operation again.

  However, if the hot water temperature does not reach 60 ° C. even after 3 minutes have passed since the second heat source device 16 is turned on, it is possible that a trouble has occurred in the heat source device 16, etc. Control for obtaining [D2] and [TX] is not executed, and the process proceeds from step S13 to step S19.

  In step S19, the hot air drying operation time [TX] is calculated based on the bathroom temperature [t0] measured at the time [T0] (FIG. 7) when 2 hours have elapsed from the start of the eco drying operation (FIG. 8). (See step S4). For example, when t0 is 5 ° C or less, TX = 73 minutes, when 5 ° C <t0 ≦ 10 ° C, TX = 63 minutes, when 10 ° C <t0 ≦ 20 ° C, TX = 48 minutes, 20 ° C <t0 ≦ When it is 25 ° C., TX = 33 minutes, and when it is higher than 25 ° C., TX = 28 minutes.

  Thereafter, when the remaining timer time reaches ([TX] +20) minutes obtained in step S18, or ((TX) +20) minutes obtained in step S19 (step S22), Subsequent to the air drying operation, the hot air drying operation is started (step S23). In this hot air drying operation, the heat source device 16 is turned on for a time [TX] while the circulation fan 14a and the ventilation fan 14b in the bathroom are continuously operated. Is dried by heating. When [TX] has elapsed since the heat source device 16 was turned on (step S24), a stop command is issued to the heat source device 16, the heat source device 16 is turned off, the heat valve 17 is closed, and the hot air drying operation is performed. Is finished (step S25). After that, post air drying is performed for 20 minutes by the air drying operation.

  When the timer time expires (step S26), the movable louver 18 is closed, the bathroom circulation fan 14a and the ventilation fan 14b are stopped, and the post-air blowing drying operation is terminated. At this time, the drying [eco] lamp 35 and the timer display unit 31 of the operation device 5 are turned off, and the eco-drying operation ends (step S28). After the end of the eco-drying operation, a ventilation operation (purge operation) for 10 minutes in which only the ventilation fan 14b is operated is performed, and the moisture in the bathroom 2 is sufficiently discharged to the outside through the exhaust duct 47 (FIG. 3).

  If any other operation mode switch is pressed during the eco-drying operation (except for the 24-hour ventilation operation that is normally performed at all times), the eco-drying operation is stopped and the mode is changed to the pressed mode. To do.

  Next, a method for calculating the above [D2] (step S17) using the arithmetic circuit 29 and further calculating the main hot air drying operation time [TX] (step S18) from this [D2] is shown in FIG. This will be described with reference to FIG.

  Line L1 in FIG. 7 represents hot water temperature, line L2 represents humidity sensor output, and line L3 represents bathroom temperature. In FIG. 7, the temperature in the bathroom [T2] measured at time [T2] after 60 seconds from the time [T1] when the heat source device 16 was turned on and the hot water temperature reached 60 ° C. for the first preliminary warm air drying operation. t1] and the humidity sensor output [D1 (01)], and the time [T3] when the heat source device 16 is turned on and the hot water temperature reaches 60 ° C. for the second preliminary warm air drying operation 100 minutes before the end of the timer. ], The bathroom temperature [t3] and the humidity sensor output [D1 (02)] measured at time [T4] after 60 seconds have passed are substituted into the following equation (1) to obtain [D2].

D2 = D1 (01) −D1 (02) + td × X (where td = t3−t1) (1)
Here, X is a coefficient for correcting the detected humidity error with respect to the temperature rise in the bathroom when the humidity sensor 27a has temperature characteristics. When the temperature characteristic of the humidity sensor 27a is flat, the coefficient X is zero, so no correction is necessary. [D2] calculated by the above equation (1) is a numerical value representing the drying characteristics of the drying object according to the capacity and the drying state of the drying object.

  Next, the above-mentioned [D2] is substituted into the following arithmetic expression to calculate the hot air drying operation time [TX]. [T0] is the bathroom temperature measured at time [T0] in FIG. 7 (see step S4 in FIG. 8).

t0 ≦ 5 ° C .: TX = Y1 × D2 + Z1
5 ° C. <t0 ≦ 10 ° C .: TX = Y2 × D2 + Z2
10 ° C <t0 ≦ 15 ° C: TX = Y3 × D2 + Z3
15 ° C. <t0 ≦ 20 ° C .: TX = Y4 × D2 + Z4
20 ° C. <t0 ≦ 25 ° C .: TX = Y5 × D2 + Z5
25 ° C. ≦ t0: TX = Y6 × D2 + Z6
Here, when D2 is an A / D conversion value of humidity in the control unit, the values of constants Y1 to Y6 are all -1.3333, and the values of constants Z1 to Z6 are all 51.

  However, in this example, [TX] does not exceed the maximum value [TXmax]. For example, the maximum value [TXmax] is calculated based on the bathroom temperature [t0] measured at time [T0] in FIG. [TXmax] = 73 minutes when t0 is 5 ° C. or less, [TXmax] = 63 minutes when 5 ° C <t0 ≦ 10 ° C, [TXmax] = 48 minutes when 10 ° C <t0 ≦ 20 ° C, 20 When TX <t0 ≦ 25 ° C., [TXmax] = 33 minutes, and when higher than 25 ° C., [TXmax] = 28 minutes. Thereby, it becomes possible to prevent excessive drying due to erroneous detection or the like when trouble occurs in the heat source unit 16.

  Furthermore, [TX] is prevented from falling below the minimum value [TXmin]. For example, the minimum value [TXmin] is calculated based on the bathroom temperature [t0] measured at time [T0] in FIG. [TXmin] = 23 minutes when t0 is 5 ° C. or lower, [TXmin] = 18 minutes when 5 ° C <t0 ≦ 10 ° C, [TXmin] = 13 minutes when 10 ° C <t0 ≦ 15 ° C, 15 When TX <t0 ≦ 20 ° C., [TXmin] = 8 minutes, and when higher than 20 ° C., [TXmin] = 3 minutes. As a result, insufficient drying due to erroneous detection or the like can be prevented.

  According to the above configuration, when the eco-drying operation is automatically performed in the bathroom 2, the hot-air drying operation time [TX] based on the humidity difference detected during the preliminary warm-air drying operation performed in two steps. Is calculated to set the time of the hot air drying operation in accordance with the amount of clothing. As a result, the drying operation can be performed in the optimum time [TX] according to the wetness of the object to be dried such as clothing or indoors. It is too long to dry out too much. As a result, an eco-drying operation with a low running cost can be realized as an operation specification for reducing energy consumption while allowing clothes to be dried evenly.

  Also, since the air drying operation is performed for 2 hours from the start of operation, the heat source unit 16 is stopped and no warm air is generated at this time. Therefore, the air is dried slowly while applying normal temperature air to the clothes to be dried. This makes the running operation very cheap. Moreover, in the post-air drying operation for 20 minutes before the end of the operation, the hot and humid air remaining in the bathroom 2 is discharged to the outside, so that the indoor temperature can be lowered and the indoor absolute humidity can be lowered. Drying is further promoted.

  Furthermore, since the eco-drying operation is completed before the timer is finished, there is also an advantage that it can be satisfactorily dried with a drying time corresponding to a drying time target desired by the user.

  In the present embodiment, the maximum value [TXmax] and the minimum value [TXmin] of the hot air drying operation time [TX] are calculated based on the bathroom temperature t0 measured at the time [T0] in FIG. As another example, the temperature may be calculated based on the bathroom temperature measured 100 minutes before the end of the timer (see FIG. 7). That is, since [t0] at time [T0] in FIG. 7 and the bathroom temperature 100 minutes before the end of the timer are substantially the same numerical values, the calculated [TXmax] and [TXmin] are also substantially the same numerical values.

  Further, the hot water from the heat source device 16 is used as a heat source for generating hot air. However, as another example, the hot water may be generated by heating with an electric heater or the like. When heating with this electric heater or the like, there is no need to wait for the rise of the hot water temperature from the heat source unit 16 as described above, and any time after a predetermined time when the temperature of the heater rises after the heater is energized, Humidity can be measured by hot air drying operation.

  Moreover, in the said embodiment, although 2 times was illustrated as the frequency | count of preliminary | backup warm air drying operation, 3 times or more may be sufficient. In this case, the humidity sensor output detected in the last preliminary warm air drying operation may be substituted into the above equation (1) as “other humidity [D1 (02)]”.

  Moreover, although the said embodiment demonstrated the case where the post-air-drying operation was performed after completion | finish of this hot air drying operation and the ventilation operation (purge operation) for 10 minutes to operate only the ventilation fan 14b was performed after completion | finish of post-air-drying operation. As another example, the post-air drying operation may be omitted, and the ventilation operation may be started immediately after the hot air drying operation is completed.

  In addition, the quiet mode can be selected in consideration of the dry operation at night, and when the dry operation is performed with the quiet mode selected, the dry operation is performed without selecting the silent mode. The bathroom circulation fan 14a and the ventilation fan 14b may be operated at a low rotational speed.

  In addition, the second preliminary warm air drying operation is executed 100 minutes before the end of the timer, but it may be configured not to be set by the timer. For example, the second preliminary warm air drying operation may be automatically started when a predetermined time elapses after the first preliminary warm air drying operation ends.

  Although the bathroom heating dryer with a mist function was illustrated as an example of the heating dryer of the present invention, a bathroom heating dryer without a mist function may be used. Moreover, the present invention is not limited to the bathroom and can be widely applied to general heating dryers installed in living rooms other than the bathroom.

DESCRIPTION OF SYMBOLS 1 Suction inlet 2 Bathroom 3 Outlet 5 Operator 12 Grill plate 14b Ventilation fan 14a Indoor circulation fan 16 Heat source machine 27 Humidity detection means 27a Humidity sensor 29 Arithmetic circuit A Bathroom heating dryer B Controller TH2 Heating hot water thermistor TH3 Bathroom temperature thermistor

Claims (6)

  Air in the room is sucked in from the air inlet, and a part of the air is exhausted to the outside, and the remaining air is heated by heating means and blown into the room as warm air from the air outlet to heat and dry the room. A warm-air drying operation, and sucking the indoor air as intake air from the intake port, exhausting a part of the intake air to the outdoors, and blowing the remaining intake air into the room from the outlet without heating by the heating means In the heating and drying operation for performing the ventilation drying operation for blowing and drying the room, the heating dryer includes humidity detection means for detecting the humidity of the intake air, and the warm air drying operation is executed for a predetermined time following the ventilation drying operation. A first preliminary warm air drying operation, a second preliminary warm air drying operation that is executed for a predetermined time subsequent to the blow drying operation after the completion of the first preliminary warm air drying operation, The main hot air drying operation that is executed following the blow air drying operation after the completion of the preliminary hot air drying operation, and the humidity detected by the humidity detecting means when the first preliminary hot air drying operation is performed is set to one. Humidity, the humidity detected by the humidity detecting means when the second preliminary warm air drying operation is performed is set as another humidity, and the main temperature increases as the humidity difference obtained by subtracting the other humidity from the one humidity increases. A heating dryer comprising a calculation means for setting a main hot air drying operation time according to the humidity difference so that the main hot air drying operation time for executing the air drying operation is shortened.   A room temperature detecting means for detecting the temperature of the intake air is provided, and the maximum value of the main hot air drying operation time is set according to the room temperature detected by the room temperature detecting means during the air blowing drying operation. The heating dryer according to claim 1.   A room temperature detecting means for detecting the temperature of the intake air is provided, and a minimum value of the main hot air drying operation time is set according to the room temperature detected by the room temperature detecting means during the air blowing drying operation. The heating dryer according to claim 1.   The heating dryer according to any one of claims 1 to 3, wherein after the main hot air drying operation is completed, a post air drying operation for performing an air blowing drying operation is subsequently performed.   The heating drying according to any one of claims 1 to 4, further comprising: a timer for presetting a time from the start of operation to the end of operation, wherein the hot air drying operation is terminated before the timer time elapses. Machine.   After completing the hot air drying operation, or when the post air drying operation is performed after the hot air drying operation, the exhaust air is exhausted to the outside after the post air drying operation. The ventilation dryer according to any one of claims 1 to 5, wherein ventilation operation is performed.

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